Amazing battery efficiency on my 3 year old ZS LR

[John Sauve Rodd]

A journey to Woking from Kent and return Thu 22nd - Sat 24th, 167 miles on M20-M26-M25-A3 and local roads with ambient temp 16C-18C, two adults with luggage.

But 4.4 miles per kwh? Really? This is Tesla territory. Battery was 100% charged before departure on 7Kw home charger, topped up on a 50Kw charger from 75% to 80% solely to see if my Electroverse card (never used before) worked (it did, Morrisons supermarket Woking).

This time of year is the sweet spot for LFP batteries. The motorway speeds were generally 55-65 mph with spots of slower (congestion) and dead stop (5 car pile up by M23 junction).

FYI my stepson who lives in Antwerp has a leaed Audi Q4 Etron and gets 2.9 m/kwh. Pathetic.

 

[Data]

Yes, that's very good John. Well done as it's your efforts too that makes that possible. Mine is giving similar figures & very long range. You mention yours is the long range. If so you have the 72.6kwh NMC battery. This warmer weather suits all batteries too. Electroverse is stunning eh!
Keep up the good work!

 

[mj224]

On warm days and local runs, I too get 4+ Kw/mile.

But on the motorway, I still get 3.5 odd, but the GOM is way out on the range, even when using the Normal setting...

 

[John Sauve Rodd]

Yes, that's very good John. Well done as it's your efforts too that makes that possible. Mine is giving similar figures & very long range. You mention yours is the long range. If so you have the 72.6kwh NMC battery. This warmer weather suits all batteries too. Electroverse is stunning eh!
Keep up the good work!

Can you enlighten on how NMC batteries behave differently to LFP? I was sure my car had LFP. On Electroverse, the charge procedure 'experience' was poor because the screen on the charger at Morrisons (MFG the owner) was almost invisible in the strong sunlight and unlike my ChargeMap RFID (I use it in Belgium) requried the card registered for payment to be waved over the sensor before it started.

On m/kwh in winter going to Antwerp I get about 3.3 that's at 90-110 kph driving speed.

 

[Data]

John, you won't actually notice a difference between LFP & NMC in normal driving. Although LFP does maintain it's voltage at higher levels for a bit longer during discharge than NMC. But frankly you won't notice that. Of course NMC is more energy dense giving longer range capability compared to an equivalent LFP. LFP requires charging to 100% more often than NMC to maintain maximum range & allowing the car to know what the state of charge is at any one time. NMC does not require that so often as the car can keep track of when the battery is full, half charged, or near empty due to the gradual fall in it's voltage rate...if you see what I mean. Overall, its best not to charge your NMC battery to 100% all the time unless you need the long range. Your battery will last a bit longer if you only go to 80% during normal charging. I normally only go to 100% if I have a very long journey ahead, or when I do a battery balance charge.

Yes, your Electroverse card must be registered & have a payment method assigned to it. Many of us are Octopus customers & use our Octopus accounts, linked to our RFID Electroverse cards, to pay for our charging. Many different charge company's require you to present your RFID card on the charger before it will start. I use MFG too & it's just a case of presenting the card & plugging in. Charging then starts. Easy.

 

[BOB353]

How is this, I thought the long ranger was only 440km, it says 450

 

[John Sauve Rodd]

John, you won't actually notice a difference between LFP & NMC in normal driving. Although LFP does maintain it's voltage at higher levels for a bit longer during discharge than NMC. But frankly you won't notice that. Of course NMC is more energy dense giving longer range capability compared to an equivalent LFP. LFP requires charging to 100% more often than NMC to maintain maximum range & allowing the car to know what the state of charge is at any one time. NMC does not require that so often as the car can keep track of when the battery is full, half charged, or near empty due to the gradual fall in it's voltage rate...if you see what I mean. Overall, its best not to charge your NMC battery to 100% all the time unless you need the long range. Your battery will last a bit longer if you only go to 80% during normal charging. I normally only go to 100% if I have a very long journey ahead, or when I do a battery balance charge.

Yes, your Electroverse card must be registered & have a payment method assigned to it. Many of us are Octopus customers & use our Octopus accounts, linked to our RFID Electroverse cards, to pay for our charging. Many different charge company's require you to present your RFID card on the charger before it will start. I use MFG too & it's just a case of presenting the card & plugging in. Charging then starts. Easy.

Thanks 'Data' - I am an 80% charge man unless a long journey is called for which in my 8th decade happens less than it once did + the train carries me El Cheapo and mostly hassle free. I'm an Octopus customer but wasn't when I got the Electroverse card. My sole gripe with the ZS (and I seem to be a rarity) is the app which will disconnect and not let me back in trapping me in a 'bind car' loop when it's already bound. MG support is poor so I've got used to not using it. That said it is a very good car, does all I ask of it and when I need to go fast to avoid a hazard accelerates like a Ferrari. All I've changed in 3 years is buying a thin spare tyre after the rear offside got ripped by debris leaving me stranded. For the money MG EVs are excellent. I'd trade up to the new model S5 except for petticoat government pointing out we have a Perfectly Good Car Now. My wife drives a Zoë, mostly for shopping and local. It's one of the best-driving cars I've ever known. We have a 16 solar panel array and are soon to become self-sufficient in non-potable water for the garden and car washing (rainwater harvesting). It's a greener world for us and a better one.

 

[Data]

BOB353
How is this, I thought the long ranger was only 440km, it says 450

That's quite normal. It will vary depending based on temperature & how the vehicle has previous been driven. It's only an estimate of range at that moment just the same as many petrol cars might show after filling with petrol. My own long range ZS frequently shows 315-320 miles after a 100% charge. It often then gives me an actual 270-285 miles during normal mixed motoring, driving in 'normal mode'. Equally, sometimes I get more range than the GOM estimates especially on warmer days.

 

[BOB353]

Thanks Data, it is only the second time I have done 100% but don't recall it reading over 440 but like you say, this is only a guestimate figure bit like DTE on my old D-Max. Last thing you want to do is run out of fuel be it diesel or battery

 

[Bam Bam]

We got amazing efficiency on our Sunday trip out. 4.9m/kWh. That is 12.7 kWh/100km for our continental friends.

There was a stretch on a dual carriageway, but it was quite slow perhaps a phantom traffic jam from an earlier accident (there was a car buried in a hedge on the side of the road at one point).

 

[Susanna]

I drove down to Basingstoke for an appointment last week in lovely warm weather. I left early, just in case of traffic issues. As there were none, I drove quite slowly - A43/M40/A34 - as there would be nothing to do if I arrived early for the appointment. I got 5.6 overall for the return journey, parts of which I was able to drive faster, and then I encountered awful traffic hold ups. Very happy with that economy.

 

[Data]

One of the beauties of EV's is their efficiency in heavy traffic. They seem to love it. Whereas my petrol cars hate it & my mpg's plummet!